ArcTangentXY Function

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Returns the arc tangent of an angle specified in radians by the number X / Y. Returns result in radians. The range of the result is -PI to PI radians. The ArcTangentXY function uses the signs of both parameters to determine the quadrant of the return value. To convert angle from radians to degrees use RadiansToDegrees function.

 

Short form: "atan2".

 

Syntax

 

value = ArcTangentXY( X, Y )

 

iParameters

x

 

any expression

y

 

any expression

 

 

 

returns

 

the arc tangent of x / y

 

Example

 

value = ArcTangentXY( PI, 2 )            ' Returns 5.6.